Battery accommodating assembly and power battery module comprising the same

ABSTRACT

A battery accommodating assembly and a power battery module are provided. The battery accommodating assembly includes a plurality of separators. Adjacent separators are detachably connected with each other via a snapping structure and define a battery chamber.

CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation application of InternationalApplication No. PCT/CN2014/095835, filed on Dec. 31, 2014, which isbased on and claims priority and benefits of Chinese Patent ApplicationNo. 201310754097.0, filed with State Intellectual Property Office onDec. 31, 2013. The entire contents of the above-referenced applicationsare incorporated herein by reference.

FIELD

Embodiments of the present disclosure generally relate to a batteryfield, and more particularly, to a battery accommodating assembly and apower battery module comprising the same.

BACKGROUND

In the related art, most of the power battery modules adopt a batteryaccommodating assembly with a multi-plate structure or an upper-lowerhousing structure. Although these structures can protect the batterywell, a combination mode of the batteries cannot be expanded anddeveloped freely due to the limitations of the multi-plate structure andthe upper-lower housing structure. When the combination mode of thebatteries is needed to be changed, it is necessary to redesign andredevelop a new combination manner of the batteries, such that it willwaste a lot of time and greatly increase the cost. Also, the batteryaccommodating assemblies with the multi-plate and upper-lower housingstructures are not suitable to an automatic production of the powerbattery module, thus increasing the cost of the power battery module.

SUMMARY

Embodiments of the present disclosure seek to solve at least one of theproblems existing in the related art to at least some extent.

Accordingly, embodiments of a first broad aspect of the presentdisclosure provide a battery accommodating assembly. The batteryaccommodating assembly includes a plurality of separators. Adjacentseparators are detachably connected with each other via a snappingstructure and define a battery chamber.

With the adjacent separators defining the battery chamber to accommodatethe battery and the plurality of separators connected with one anotherdetachably, the power battery module according to embodiments of thepresent disclosure can freely expand a number of batteries and beadapted to different connection manners of the batteries (such as aseries connection, a parallel connection and a series-parallelconnection) according to an actual requirement. In addition, theadjacent separators of the battery accommodating assembly are detachablyconnected with each other via a snapping structure, such that it isconvenient to assemble and disassemble the battery accommodatingassembly, and the assembly process is simplified and the assemblyefficiency is improved. Furthermore, for the power battery module, anexpansibility thereof is improved, a development cost thereof is reducedand a development period thereof is shortened.

Embodiments of a second broad aspect of the present disclosure providepower battery module. The power battery module includes: a batteryaccommodating assembly mention above, and a battery accommodated in thebattery chamber. With the power battery module, an expansibility ofpower battery module is improved, a development cost of power batterymodule is reduced and a development period of power battery module isshortened

Additional aspects and advantages of embodiments of present disclosurewill be given in part in the following descriptions, become apparent inpart from the following descriptions, or be learned from the practice ofthe embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other aspects and advantages of embodiments of the presentdisclosure will become apparent and more readily appreciated from thefollowing descriptions made with reference to the accompanying drawings,in which:

FIG. 1 is a schematic view of an assembled power battery moduleaccording to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the power battery module shown in FIG. 1from another direction;

FIG. 3 is a schematic view showing an assembling relationship between abattery accommodating assembly and a battery shown in FIG. 1;

FIG. 4 is a schematic view showing an assembling relationship betweenthe separators of a power battery module shown in FIG. 1;

FIG. 5 is an enlarged view of region A in FIG. 4;

FIG. 6 is a perspective view of a separator of the power battery moduleas shown in FIG. 1;

FIG. 7 is a schematic view of a power battery module according toanother embodiment of the present disclosure;

FIG. 8 is a schematic view of the power battery module as shown in FIG.7 without left and right covers;

FIG. 9 is a schematic view showing an assembling relationship between abattery accommodating assembly and a battery according to a furtherembodiment of the present disclosure;

FIG. 10 is an enlarged view of region B shown in FIG. 9;

FIG. 11 is a perspective view of a separator in the power battery moduleas shown in FIG. 9;

FIG. 12 is a schematic view showing a assembling relationship between aseparator and an insulating plate or a heat conducting plate of thebattery accommodating assembly shown in FIG. 9;

FIG. 13 is a perspective view of a snap-fit pin of the power batterymodule shown in FIG. 9;

FIG. 14 is an enlarged view of region C shown in FIG. 13;

FIG. 15 is a perspective view of a cable snap-fit according to anembodiment of the present disclosure;

FIG. 16 is a perspective view of a cable snap-fit according to anotherembodiment of the present disclosure;

FIG. 17 is a perspective view of a cable snap-fit according to a furtherembodiment of the present disclosure;

FIG. 18 is schematic view showing an assembling relationship between acable snap-fit and a separator according to an embodiment of the presentdisclosure; and

FIG. 19 is an enlarged view of region D shown in FIG. 18.

DETAILED DESCRIPTION

Reference will be made in detail to embodiments of the presentdisclosure. The same or similar elements and the elements having same orsimilar functions are denoted by like reference numerals throughout thedescriptions. The embodiments described herein with reference todrawings are explanatory, illustrative, and used to generally understandthe present disclosure. The embodiments shall not be construed to limitthe present disclosure.

In the specification, unless specified or limited otherwise, relativeterms such as “central”, “longitudinal”, “lateral”, “front”, “rear”,“right”, “left”, “inner”, “outer”, “lower”, “upper”, “horizontal”,“vertical”, “above”, “below”, “up”, “top”, “bottom”, “inner”, “outer”,“clockwise”, “anticlockwise” as well as derivative thereof (e.g.,“horizontally”, “downwardly”, “upwardly”, etc.) should be construed torefer to the orientation as then described or as shown in the drawingsunder discussion. These relative terms are for convenience ofdescription and do not require that the present disclosure beconstructed or operated in a particular orientation.

In addition, terms such as “first” and “second” are used herein forpurposes of description and are not intended to indicate or implyrelative importance or significance. Thus, features limited by “first”and “second” are intended to indicate or imply including one or morethan one these features. In the description of the present disclosure,“a plurality of” relates to two or more than two.

In the description of the present disclosure, unless specified orlimited otherwise, it should be noted that, terms “mounted,” “connected”“coupled” and “fastened” may be understood broadly, such as permanentconnection or detachable connection, electronic connection or mechanicalconnection, direct connection or indirect connection via intermediary,inner communication or interaction between two elements. These havingordinary skills in the art should understand the specific meanings inthe present disclosure according to specific situations.

In the description of the present disclosure, a structure in which afirst feature is “on” a second feature may include an embodiment inwhich the first feature directly contacts the second feature, and mayalso include an embodiment in which an additional feature is formedbetween the first feature and the second feature so that the firstfeature does not directly contact the second feature, unless otherwisespecified. Furthermore, a first feature “on,” “above,” or “on top of” asecond feature may include an embodiment in which the first feature isright “on,” “above,” or “on top of” the second feature, and may alsoinclude an embodiment in which the first feature is not right “on,”“above,” or “on top of” the second feature, or just means that the firstfeature has a sea level elevation larger than the sea level elevation ofthe second feature. While first feature “beneath,” “below,” or “onbottom of” a second feature may include an embodiment in which the firstfeature is right “beneath,” “below,” or “on bottom of” the secondfeature, and may also include an embodiment in which the first featureis not right “beneath,” “below,” or “on bottom of” the second feature,or just means that the first feature has a sea level elevation smallerthan the sea level elevation of the second feature.

A power battery module 1000 serves as a power source of an electricvehicle, such that the performance and safety thereof become significantfactors for the whole electric vehicle. The power battery module 1000may include a battery accommodating assembly 100 and a battery 101, inother words, the battery 101 is mounted in the battery accommodatingassembly 100 so as to form the power battery module 1000, FIG. 3 andFIG. 9 are schematic view showing an assembling relationship between abattery accommodating assembly 100 and a battery 101.

The battery accommodating assembly 100 according to embodiments of thepresent disclosure will be described in the following with reference toFIGS. 1-19.

As shown in FIGS. 1-12, the battery accommodating assembly 100 accordingto embodiments of the present disclosure has a plurality of separators10, and adjacent separators 10 are detachably connected with each othervia a snapping structure 60 and define a battery chamber configured toaccommodate the battery 101.

In some embodiments of the present disclosure, the plurality ofseparators 10 is disposed parallel with each other in a rear-frontdirection. Specifically, the adjacent separators 10 are connected witheach other via the snapping structure 60, and the adjacent separators 10are detachable with each other.

Since the adjacent separators 10 are detachably connected with eachother via the snapping structure 60, any number of separators 10 can beconnected together according to an actual requirement, such that anynumber of batteries 101 can be adopted to satisfy requirements of thepower battery modules 1000 having different parameters, i.e. the powerbattery module 1000 can be freely expanded and developed according tothe actual requirement. For example, a capability of accommodating thebattery 101 of the power accommodating assembly 100 can be improved byincreasing a number of the separators 10. In other words, by increasingthe number of the separators 10, a number of the battery chambers in thepower battery module 1000 can also be increased, so that moreaccommodating space can be provided for the additional batteries 101 inthe power battery module 1000.

Accordingly, with the adjacent separators 10 defining the batterychamber configured to accommodate the battery 101 and connected witheach other detachably, the power battery module 1000 according toembodiments of the present disclosure can freely expand the number ofthe batteries 101 and be adapted to different connection manners of thebatteries (such as a series connection, a parallel connection and aseries-parallel connection of the batteries 101) according to an actualrequirement. In addition, the adjacent separators 10 of the batteryaccommodating assembly 100 are detachably connected with each other viathe snapping structure 60, such that it is convenient to assemble anddisassemble the battery accommodating assembly 100, and the assemblyprocess is simplified and the assembly efficiency is improved.Furthermore, for the power battery module 1000, an expansibility thereofis improved, a development cost thereof is reduced and a developmentperiod thereof is shortened.

The snapping structure 60 according to embodiments of the presentdisclosure will be described with reference to FIGS. 1-6.

As shown in FIGS. 1-6, the snapping structure includes a snapping groove61 formed in one of the adjacent separators 10 and a snapping tongue 62disposed on the other of the adjacent separators 10 and adapted to snapin the snapping groove 61 to fasten the adjacent separators 10 together.In other words, the snapping structure 60 may include the snappingtongue 62 and the snapping groove 61, the snapping tongue 62 is disposedon one of the adjacent separators 10, and the snapping groove 61 isformed in the other of the adjacent separators 10 and is cooperated withthe snapping tongue 62 to fasten the adjacent separators 10 together.

Moreover, a positioning hole 621 may be formed in the snapping tongue62, and a positioning boss 612 may be disposed on a bottom wall of thesnapping groove 61 and is fitted into the positioning hole 621.Specifically, the positioning boss 612 extends upward into thepositioning hole 621, i.e. the snapping tongue 62 is snapped in thesnapping groove 61, such that the adjacent separators 10 can beconnected with each other. Therefore, the adjacent separators 10 have asimple structure and are easy to connect with each other, thus providingthe high expansibility. Moreover, the snapping tongue 62 and thesnapping groove 61 also have a function of positioning for the pluralityof separators 10, thus facilitating the positioning between the adjacentseparators 10 and improving the assembling speed.

As shown in FIGS. 4-6, the separator 10 includes the upper frame plate112. The upper frame plate 112 is disposed at a top of the separator 10.The snapping groove 61 is formed in one of front and rear edges of theupper frame plate 112, and the snapping tongue 62 is disposed on theother of the front and rear edges of the upper frame plate 112. In otherwords, each of the separators 10 has both of the snapping groove 61 andthe snapping tongue 62, such that when the plurality of separators 10are arranged in a row, the plurality of separators 10 can be snappedwith an another one by one.

Alternatively, the separator 10 includes the lower frame plate 113. Thelower frame plate 113 is disposed at a bottom of the separator 10. Thesnapping groove 61 is formed in one of front and rear edges of the lowerframe plate 113, and the snapping tongue 62 is disposed on the other oneof the front and rear edges of the lower frame plate 113. In otherwords, the snapping structure 60 may be disposed on both of the upperframe plate 112 and the lower frame plate 113 of each of the separators10. Further, the snapping structure 60 may be merely disposed on theupper frame plate 112, or the snapping structure 60 may be merelydisposed on the lower frame plate 113 or the snapping structure 60 maybe disposed on both of the upper frame plate 112 and the lower frameplate 113.

In an embodiment of the present disclosure, the snapping structure 60 isdisposed on both of the upper frame plate 112 and the lower frame plate113, such that upper portions of the adjacent separators 10 areconnected with each other and lower portions of the adjacent separatorsare also connected with each other, and thus a connection strength and aconnection stability between the adjacent separators 10 are improved.Furthermore, the battery accommodating assembly 100 protects the battery101 more reliably.

A plurality of the snapping tongues 62 and the snapping grooves 62 maybe disposed on the upper frame plate 112 of the separator 10 and thesnapping tongues 62 may be one to one correspondence with the snappinggroove 62. A plurality of the snapping tongues 62 and the snappinggrooves 62 are disposed on the lower frame plate 113 of the separator 10and the snapping tongue 62 may be one to one correspondence with thesnapping groove 62. Thereby, the connection strength and the connectionstability between the adjacent separators 10 are further improved.

In an embodiment of the present disclosure as shown in FIG. 5, thesnapping tongue 62 is configured to have a trapezoid shape, i.e. aprojection of the snapping tongue 62 in the up-down direction is atrapezoid. Correspondingly, the snapping groove 61 may be configured asa trapezoid fitted with the snapping tongue, such that the snappingtongue 62 has a sufficient structure strength. Certainly, the presentdisclosure is not limited to this, and the snapping tongue 62 and thesnapping groove 61 may have any other shapes as long as the snappingtongue 62 can be snapped in the snapping groove stably.

As shown in FIG. 6, a guiding slope 611 may be formed at an opening ofthe snapping groove 61, and the guiding slope 611 is configured to beinclined downward from an inner end of snapping groove 612 to theopening thereof. When the battery accommodating assembly 100 isassembled, the guiding slope 611 performs a guiding function on mountingthe snapping tongue 62, i.e. the snapping tongue 62 is guided to insertinto the snapping groove easily via the guiding slope 611, thusimproving the assembling speed and reducing a assembling difficulty.

The snapping structure 60 according to another embodiment of the presentdisclosure will be described in the following with reference to FIGS.7-14.

As shown in FIGS. 7-14, the snapping structure 60 may include a snap-fitgroove 63 and a snap-fit pin 64. The snap-fit groove 63 is formed in theseparator 10 and the snap-fit pin 64 is configured as a detachablemember with respect to the separator 10 and includes at least twomounting parts 641. The at least two mounting parts 641 are snapped inthe snap-fit grooves 63 of at least two separators 10 so as to connectthe at least two separators 10 with each other. In other words, thesnap-fit pin 64 can connect the at least two adjacent or non-adjacentseparators 10 with each other. By disposing the snap-fit pin 64, it isconvenient to connect the separators 10 together, and it is easy toassemble the separators rapidly and various assembly manners areprovided.

As shown in FIGS. 10 and 13, in some embodiments of the presentdisclosure, the snap-fit pin 64 may further include a connecting bridge642. Two mounting parts 641 are disposed at two ends of the connectionbridge 642 respectively and are fitted in the snap-fit grooves 63 ofadjacent separators 10 to connect the adjacent separators 10 with eachother. In other words, the snap-fit pin 64 may merely connect theadjacent separators 10 with each other, such that the snap-fit pin 64may have a relative small volume and a simple structure. Therefore, aconnecting structure between separators 10 of the battery accommodatingassembly 100 is simple and it is convenient to assembly the separators10. By using the snap-fit pin 64 to connect the separators 10 with eachother, the power battery module 1000 can include any number ofseparators 10 according to the actual requirement of the batteries, thusimproving the extendibility of the power battery module 1000.

The snap-fit grooves 63 has an opening 631, and the openings 631 of thesnap-fit grooves 63 in the adjacent separators 10 are aligned to eachother so as to form a groove to receive the connecting bridge 642.Thereby, when the snap-fit pin 64 is disposed between the separators 10,an upper surface of the snap-fit pin 64 is flush with an upper surfaceof the separator 10, such that the appearance of the batteryaccommodating assembly 100 is aesthetic and the snap-fit pin 64 iscompletely embedded into the snap-fit groove 63, thus avoiding a damageon the snap-fit pin 64 due to an external force.

In some embodiments of the present disclosure, the snap-fit groove 63may be formed in each of the upper frame plates 112 of the adjacentseparators 10 and the snap-fit pin 64 may be disposed between the upperframe plates 112 of the adjacent separators 10 to connect the adjacentseparators 10 with each other.

Alternatively, the snap-fit groove 63 may be formed in each of the lowerframe plates 113 of the adjacent separators 10 and the snap-fit pin 64may be disposed between the lower frame plates 113 of the adjacentseparators 10 to connect the adjacent separators 10 with each other.

In an embodiment of the present disclosure, the snap-fit pin 64 may bemerely disposed between the upper frame plates 112 of the adjacentseparators 10 or between the lower frame plates 112 of the adjacentseparators 10. Alternatively, the snap-fit pins 64 may be disposedbetween the upper frame plates 112 of the adjacent separators 10 andbetween the lower frame plates 113 of the adjacent separators 10synchronously. Therefore, the various connection manners between theseparators 10 are provided so as to meet various mounting requirementsof the battery accommodating assembly 100.

In an embodiment of the present disclosure, the snap-fit pins 64 aredisposed between the upper frame plates 112 of the adjacent separators10 and between the lower frame plates 113 of the adjacent separators 10synchronously, such that the upper portions of the adjacent separators10 are connected with each other and the lower portions of the adjacentseparators 10 are connected with each other, and the structure of thebattery accommodating assembly 100 is stable, thus providing a morereliable protection of the battery accommodating assembly 100 for thebattery 101 and the better safety performance for the power batterymodule 1000.

Alternatively, the mounting part 641 may have an interference fit withthe snap-fit groove 63, or the mounting part 641 may be fitted in thesnap-fit groove 63 via a bolt, such that the snap-fit pin 64 can beconnected with the separator 10 closely, thus providing the highreliability and high connection strength and improving the working lifeof the power battery module 1000.

Alternatively, the mounting part 641 may be configured as a circular, atrapezoid or a rectangle shape. In other words, a projection of themounting part 641 in the up-down direction may be a circular, atrapezoid or a rectangle. Correspondingly, the snap-fit groove 63 isalso configured as a circular, a trapezoid or a rectangle matched withthe mounting part 641. Therefore, the structure of the mounting part 641is various and it is convenient to assemble the mounting part 641 ontothe separator 10.

In an embodiment of the present disclosure, a step part 6416 is formedon a surface of the mounting part 641 facing the snap-fit groove 63, anda step part 632 corresponding to step part 6416 of the mounting part 641is formed on the snap-fit groove 63, such that the mounting part 641 canbe fitted in the snap-fit groove 63 more closely, and the snappingstructure 60 is more stable and the structure stability of the batteryaccommodating assembly 100 is further improved.

As shown in FIGS. 13 and 14, the connecting bridge 642 extends in alongitudinal direction and two mounting parts 641 are disposed at twoends of the connecting bridge 642 in the longitudinal direction and arevertical to the longitudinal direction, i.e. the mounting part 641extends in a lateral direction. In other words, the snap-fit pin 64 isconfigured as a substantial “

” shape. A plurality of protruded ridges 6411 extending in a thicknessdirection of the connection bridge 642 are disposed on an outer endsurface of the mounting part 641 away from the connecting bridge 642,i.e. the protruded ridge 6411 extends in a vertical direction. When thesnap-fit pin 64 is being mounted into the separator 10, the mountingpart 641 is fitted with the snap-fit groove 63 and the protruded ridge6411 disposed on the outer end surface of the mounting part 641 performsa positioning and guiding function, such that it facilitates to mountthe snap-fit pin 64. Moreover, a friction force may be generated betweenthe protruded ridge 6411 and a wall of the snap-fit groove 63 so as tohold the snap-fit pin 64 during a whole service time of the snap-fit pin64.

In some embodiments of the present disclosure, a cross-section of theprotruded ridge 6411 is configured as an arc shape. Alternatively, oneend of the protruded ridge 6411 has a slope 6412 inclined toward theother end of the protruded ridge 6411, i.e. as shown in FIG. 14, one end(for example an upper end) of the protruded ridge 6411 in the verticaldirection has the slope 6412 inclined toward the other end (for examplean lower end) of the protruded ridge 6411 in the vertical direction.Alternatively, a cross-section of the other end (for example the lowerend) of the protruded ridge 6411 may be configured as circle. Thereby,it is convenient to assemble a product during usage, and a force in thelongitudinal direction may be generated between the protruded ridge 6411and the wall of the snap-fit groove 63, such that it is hard for thesnap-fit pin 64 to have a deformation to get out of the snap-fit groove63. Certainly, in an embodiment of the present disclosure, the protrudedridge 6411 may be disposed at each of two opposing end surfaces of themounting part 641, such that the friction force between the protrudedridge 6411 and the wall of the snap-fit groove 63 can be furtherimproved, thus further increasing the connection strength of thesnap-fit pin 64.

In an embodiment of the present disclosure, at least one of the twomounting parts 641 has at least one dismounting hole 6413 penetratingthe mounting part 641 in the thickness direction thereof. When mountingor dismounting the snap-fit pin 64, an operator can hold the snap-fitpin 64 via the dismounting hole 6413 to mount or dismount, such that itis easy and convenient to mount or dismount the snap-fit pin 64 rapidly.Alternatively, a mounting member such as a mounting boss or a mountingpin (not shown), fitted with the dismounting hole 6413, may be disposedon a bottom wall of the snap-fit groove 63, such that the snap-fit pin64 can be fixed on the separator 10 more stably. One or a plurality ofdismounting holes 6413 may be provided according to the actualassembling requirement.

As shown in FIGS. 13 and 14, the mounting part 641 has a base stand 6414extending outward in the thickness thereof. In other words, the basestand 6414 extends in the longitudinal direction and a surface of thebase stand 6414 is higher than a surface of the corresponding mountingpart 641. The base stand 6414 is formed at peripheries of thecorresponding mounting part 641. By disposing the base stand 6414, thestructure strength of the mounting part 641 can be increased, and thestrength of the snap-fit pin 64 can also be improved. Furthermore, themounting part 641 is difficult to deform and the connection strength ofsnap-fit pin 64 between the separators 10 is improved.

Alternatively, an extended thickness of the base stand 6414 may be 1 to10 mm. In an embodiment of the present disclosure, the extendedthickness of the base stand is 1 to 3 mm, thus, the base stand 6414 hasa proper thickness, and the material of the base stand 6414 can besaved.

Alternatively, at least one strengthening rib 6422 is formed in thesurface of the connecting bridge 642. By disposing the strengthening rib6422, the structure strength of the connecting bridge is strengthenedand the connecting bridge 642 is not easy to deform, thus increasing theworking life of the snap-fit pin 64.

In some embodiments of the present disclosure, as shown in FIG. 13, aplurality of bosses 6421 are disposed on at least one of two sidesurfaces of the connecting bridge 642 in the lateral direction and areprotruded outward from the corresponding side surface. By disposing theplurality of bosses 6421, the friction force between the snap-fit pin 64and the wall of the snap-fir groove 63 is increased, thus furtherimproving the connection strength between the snap-fit pin 64 andseparator 10.

Alternatively, each of the plurality of bosses 6421 is configured as asubstantial semisphere, such that it is convenient for a demoldingthereof during an injection molding of the snap-fit pin 64. If a size ofthe boss 6421 is too small, the friction force between the snap-fit pin64 and the wall of the snap-fit groove 63 is not enough; if the size ofthe boss 6421 is too large, it is difficult for the demolding of thesnap-fit 64. Preferably, a diameter of the boss 6421 is from 1 mm to 2mm, i.e. a diameter of a connecting part of the boss 6421 and theconnecting bridge 642 may be from 1 mm to 2 mm, thus ensuring thefriction force between the snap-fit pin 64 and the wall of the snap-fitgroove 63 and facilitating the demolding of the snap-fit pin 64. Theplurality of bosses 6421 are spaced apart from each other in thelongitudinal direction, such that the friction force between thesnap-fit pin 64 and the wall of the snap-fit groove 63 is uniform.

Considering the connection strength of the snap-fit pin 64 and thecooperation between the snap-fit 64 and the separator 10, a thickness ofthe whole snap-fit pin 64 may be from 8 mm to 15 mm. In an embodiment ofthe present disclosure, the thickness of the whole snap-fit pin 64 isfrom 10 mm to 13 mm, i.e. a thickness of a projection of the snap-fit 64in the up-down direction is from 10 mm to 13 mm. Thereby, the snap-fitpin 64 has the enough structure strength and saves material, and it isconvenient and reliable to connect the snap-fit pin 64 with theseparator 10.

Alternatively, the snap-fit pin 64 is a plastic molding part or aplastic-metal mixed molding part. For example, the connecting bridge642, the mounting part 641, the protruded ridge 6411, the boss 6421 andthe base stand 6414 are plastic parts and are formed integrally by theinjection molding, and it is easy and convenient to form these plasticparts. The connecting bridge 642, the mounting part 641, the protrudedridge 6411, the boss 6421 and the base stand 6414 may be made of PPO(Poly Phenylene Oxide), PP (Poly Propylene), PPE (Poly Phenyl Ether) orthese materials embedded with metal therein. Thereby, these componentshave the high strength, the high corrosion resistance, the great weatherfastness, the good fire resistance and the high insulation propertywhich meet the requirement of safety performance and reliability, andthus the snap-fit pin 64 has the high structure strength.

In some embodiments of the present disclosure, a through hole may beformed in at least one of left and right walls of the battery chamber.The through hole serves as an exit for an electrode passing through thebattery chamber, and positive and negative electrodes of the battery 101can extend out via the through hole so as to facilitate a connectionbetween the batteries 101. Or the through hole may serve as apositioning hole 621 of an anti-explosion valve or an injection hole (ananti-explosion liquid may be injected into the battery chamber via theinjection hole), i.e. a function of the through hole can be determinedaccording to the actual requirement so as to facilitate a functiondevelopment of the power battery module 1000.

Alternatively, two notches opposed to each other may be formed inadjacent separators 10 respectively and the two notches define thethrough hole. In an embodiment of the present disclosure, across-section of the through hole may be a circular, an ellipse, apolygon or an irregular shape.

Alternatively, a plurality of through holes are arranged and spaced fromone another in an up-down direction, i.e. a plurality of the notches maybe formed in one separator 10 and spaced from one another in the up-downdirection.

As shown in FIG. 6, FIG. 11 and FIG. 12, the separator 10 includes aseparator body 11 having a front portion and a rear portion, the frontportion defines a front accommodating groove 14. Specifically, the frontaccommodating groove 14 is configured to extend backward from the frontportion of the separator body 11. A front notch 141 is formed in atleast one of left and right walls of the front accommodating groove 14,and the front accommodating groove 14 of one of the adjacent separators10 and the rear portion of the separator body 11 of the other ofadjacent separators 10 define the battery chamber. And the front notch141 of one of the adjacent separators 10 and the rear portion of theseparator body 11 of the other of adjacent separators 10 define thethrough hole. In other words, an accommodating groove of the battery 101is merely formed in the front portion of each separator 10, and thefront accommodating groove 14 and the rear portion of the adjacentseparator 10 define the battery chamber to accommodate the battery 101.Thereby, the separator 10 has a simpler structure and is easily to bemanufactured.

In some embodiments, the rear portion of each separator may define arear accommodating groove, and a rear notch 151 corresponding to thefront notch 141 may be formed in at least one of left and right walls ofthe rear accommodating groove. The battery chamber may be defined by thefront accommodating groove 14 of one of the adjacent separators 10 andthe rear accommodating groove of the other of the adjacent separators10, and the through-hole may be defined by the front notch 141 of one ofthe adjacent separators 10 and the rear notch 151 of the other of theadjacent separators 10. Therefore, the battery chamber is defined by thefront accommodating groove 14 and the rear accommodating groove to havemore space for accommodating the battery 101. Structures of the frontand rear portions of each separator 10 may be identical with each other,such that the separator can have a symmetrical structure.

Alternatively, the front notch 141 and the rear notch 151 may beconfigured as a semicircle, and thus the through hole defined by thefront notch 141 and the rear notch 151 can have a circularcross-section. In an embodiment of the present disclosure, each of theplurality of separators 10 may have a same structure, such that theplurality of separators 10 can be manufactured by a same set of mold,thus saving the cost and facilitating the assembling and quantityproduction of the power battery module 1000.

As shown in FIGS. 4 and 6, each of the separators 10 includes two frontaccommodating grooves 14 arranged along the up-down direction and tworear accommodating grooves arranged along the up-down direction and inone to one correspondence with the front accommodating grooves 14. Thetwo front accommodating grooves 14 are separated from each other by afront separating plate 1110, and the two rear accommodating grooves areseparated from each other by a rear separating plate 1101. Therefore,two battery chambers are formed between the two separators 10 toaccommodate two batteries 101, thus further improving the capability ofthe battery accommodating assembly 100 to accommodate the battery 101and the structure of the power battery module 1000 is compact. It can beunderstood by those skilled in the related art that the two batterychambers formed between the two adjacent separators 10 and spaced fromeach other in the up-down direction are just exemplary, and not limited.In other words, more battery chambers may be formed between adjacentseparators, such as three or more than three, and thus more batteries101 can be disposed in the battery accommodating assembly 100, such thatthe power battery module 1000 is easy to be used and has a highexpansibility. In an embodiment of the present disclosure, the frontseparating plate 1110 and rear separating plate 1101 corresponding toeach other are formed integrally.

As shown in FIGS. 6, 11 and 12, the separator 11 includes a verticalplate 111, an upper frame plate 112, a lower frame plate 113, a leftplate 114 and a right plate 115. The upper frame plate 112 is disposedat a top edge of the vertical plate 111, the lower frame plate isdisposed at a bottom edge of the vertical plate 111, the left plate 114is disposed at a left end of the vertical plate 111 and includes anupper end connected with the upper frame plate 112 and a lower endconnected with the lower frame plate 113, and the right plate 115 isdisposed at a right end of the vertical plate 111 and includes an upperend connected with the upper frame plate 112 and a lower end connectedwith the lower frame plate 113.

Each of the front accommodating groove 14 and the rear accommodatinggroove is defined by the vertical plate 111, the upper frame plate 112,the lower frame plate 113, the left plate 114 and the right plate 115.Thereby, the separator body 11 has a simple structure and is easy tomanufacture. In an embodiment of the present disclosure, the separator10 may be formed integrally, i.e. the vertical plate 111, the upperframe plate 112, the lower frame plate 113, the left plate 114 and theright plate 115 may be formed integrally, such that a connectionstrength between the vertical plate 111, the upper frame plate 112, thelower frame plate 113, the left plate 114 and the right plate 115 isimproved, thus improving a structure strength of the separator 10.Furthermore, a protection of the battery accommodating assembly 100 forthe battery 101 is improved.

Alternatively, the front notch 141 may be formed in a front edge of eachof the left plate 114 and the right plate 115, and the rear notch 151may be formed in a rear edge of each of the left plate 114 and the rightplate 115. In other words, the through hole may be formed in both leftand right sides of the battery chamber, such that the electrode of thebattery 101 can extend out of the battery chamber via a left throughhole or a right through hole. The positions of the positioning hole 621of the anti-explosion valve, the injection hole and the through hole forthe electrode can be arranged according to the structure of the battery101. A plurality of the front notches 141 are arranged and spaced fromone another in the up-down direction, and a plurality of the rearnotches 151 are arranged and spaced from one another in the up-downdirection, i.e. a plurality of though holes are formed in both the leftand right sides of the battery chamber.

In addition, when the power battery module 1000 works normally, a gapmay be formed between a peripheral wall of the battery chamber and thebattery 101, such that the battery 101 can be cooled by air within thepower battery 1000. When there is an abnormal condition occurred in thebattery 101 of the power battery module 1000, for example when thebattery 101 is swollen, the gap between the peripheral wall of thebattery chamber and the battery 101 can tolerate the deformation of thebattery 101 in a thickness direction, thus improving the safety of thepower battery module 1000.

An annular step 142 is disposed on a bottom wall of at least one of thefront accommodating groove 14 and the rear accommodating groove. In anembodiment of the present disclosure, the annular step 142 is disposedon the bottom wall of each of the front accommodating groove 14 and therear accommodating groove. By disposing the annular step 142, the bottomwall of each front accommodating groove 14 and the rear accommodatinggroove can be separated from an outer surface of the battery 101, thusensuring the gap between peripheral wall of the battery chamber and thebattery 101.

Alternatively, a surface of the bottom wall of at least one of the frontaccommodating groove 14 and rear accommodating groove is inclineddownward from a periphery of the bottom wall to a center of the bottomwall. In an embodiment of the present disclosure, the surface of thebottom wall of each of the front accommodating groove 14 and rearaccommodating groove is inclined downward from the periphery of thebottom wall to the center of the bottom wall, thus ensuring the gapbetween peripheral wall of the battery chamber and the battery 101. Thesurface of the bottom wall of each front accommodating groove 14 andrear accommodating groove may be a surface of the vertical plate 111.

In order to meet a requirement of safety and reliability, the separator10 may be made of an engineering plastic and a composite material havinga high strength, a high corrosion resistance, a great weather fastness,a good fire resistance and a high insulation property, such as PPO (PolyPhenylene Oxide), PP (Poly Propylene), PET (Polyethylene GlycolTerephthalate), ABS (Acrylonitrile Butadiene Styrene), PC (PolyCarbonate) or these materials embedded with metal therein. Thereby, theseparator 10 according to embodiments of the present disclosure has thehigh strength and can protect the battery 101 effectively in abnormalconditions, such as a collision occurred to the power battery module1000. For example, the separator body 11 may be formed by overallinjection molding, and the metal may be embedded into these materialsduring the injection molding, so that the structure strength of theseparator 10 is further improved. Moreover, the separator 10 may bedemolded directly after the injection molding, so that it is convenientfor manufacture and the cost is saved.

As shown in FIG. 12, a front step 118 is disposed at a front side edgeof each of the upper frame plate 112 and the lower frame plate 113, anda rear step 119 is disposed at a rear side edge of each of the upperframe plate 112 and lower frame plate 113. When the plurality ofseparators 10 are assembled together, the front step 118 disposed at thefront side edge of the upper frame plate 112 of one of the adjacentseparators 10 is lapped with the rear step 119 disposed at the rear sideedge of the upper frame plate 112 of the other one of the adjacentseparators 10. Similarly, the front step 118 disposed at the front sideedge of the lower frame plate 113 of one of the adjacent separators 10is lapped with the rear step 119 disposed at the rear side edge of thelower frame plate 113 of the other one of the adjacent separators 10.Thus, an appearance of the battery accommodating assembly 100 isaesthetic, and adjacent separators 10 can be closely connected with eachother. Moreover, the assembling efficiency of the power battery module1000 is improved and the manufacture cost of the power batter module1000 is reduced. In an embodiment of the present disclosure, the frontstep 118 may face downward and the rear step 119 may face upward, suchthat the corresponding front step 118 and rear step 119 can be fittedwith each other better.

In an embodiment of the present disclosure as shown in FIG. 12, thefront step 118 includes a first front step segment 1181 facing downwardsand a second front step segment 1182 facing upwards, and the rear step119 includes a first rear step segment facing upwards and correspondingto the first front step segment 1181 and a second rear step segment 1191facing downwards and corresponding to the second front step segment1182. Thereby, the adjacent separators 10 can be assembled with eachother closer, so that a better assembly effect can be implemented.Moreover, by dividing the front step 118 and the rear step 119 into twosegments respectively, the adjacent separators 10 can be assembledtogether and positioned with respect to each other due to a connectionbetween the front step 118 and the rear step 119, and the connectionbetween the adjacent separators 10 is stably.

In some embodiments of the present disclosure, a window 1111 may beformed in the vertical plate 111 to communicate the front accommodatinggroove 14 with the rear accommodating groove, i.e. the frontaccommodating groove 14 and the rear accommodating groove arecommunicated with each other. In other words, the vertical plate 111 isconfigured as a structure penetrated therethrough in the front-reardirection, thus saving a manufacture material and reducing the cost.

An insulating plate 16 or a heat conducting plate 17 may be disposed inthe window 1111. By disposing the insulating plate 16, insulationbetween adjacent batteries 101 can be improved, so that a safetyperformance of the power battery module 1000 can be increased. Bydisposing the heat conducting plate 17, the radiation effect of thebattery 101 within the battery chamber can be improved, thus, the safetyperformance of the power battery module 1000 can also be increased and aworking life of the battery 101 can be lengthened.

Specifically, an insertion hole is formed in the upper frame plate 112,and an inserting groove aligned with the inserting hole is formed in thevertical plate 111, and the insulating plate 16 or the heat conductingplate 17 is inserted into the window 1111 via the insertion hole and theinserting groove. Thus, the insulating plate 16 or the heat conductingplate 17 may be mounted into the window 1111 more easily, and thestructure is simple and easy to be assembled.

As shown in FIGS. 1-3, 6, 7, 9 and 11, in some embodiments of thepresent disclosure, a left cover 12 is disposed at a left end of theseparator body 11; and a right cover 13 disposed at a right end of theseparator body 11. With the left cover 12 and the right cover 13, theseparator 10 and the battery 101 in the separator 10 may be protectedwell, thus further increasing safety performance and stability of thepower battery module 1000.

As shown in FIGS. 1-3, 6, 7, 9 and 11, in some embodiments of thepresent disclosure, the left cover 12 and the right cover 13 can beformed with the separator body 11 integrally, such that a connectionstrength between the separator body 11 and the left cover 12 and theright cover 13 is improved, and a complex assembly process of the leftcover 12 and the right cover 13 can be avoided, thus increasing anassembling speed.

Certainly, the present disclosure according to embodiments of thepresent disclosure is not limited to this, the left cover 12 and theright cover 13 may be detachably disposed on the separator 11respectively. In other words, the separator 11, the left cover 12 andthe right cover 13 may be produced independently, and then the leftcover 12 and the right cover 13 are disposed on the separator 11 via aconnection structure. Thereby, when one of the separator 11, the leftcover 12 and the right cover 13 is damaged, it is just required toreplace the corresponding one without replacing the whole assembly, thusfacilitating maintenance and saving a cost thereof.

In an embodiment of the present disclosure as shown in FIG. 6, asnapping slot 117 may be formed in the separator body 11, and a clasp134 snapped in the snapping slot 117 may be disposed on the left cover12 and the right cover 13 respectively. By snapping the clasp 134 withinthe snapping slot 117, the left cover 12 and the right cover 13 aredisposed on the separator body 11 respectively, such that theconnections between the left cover 12 and the separator 10 and the rightcover 13 and the separator 10 are simple. As shown in FIG. 6, the clasp134 may be disposed on upper and lower ends of each of the left cover 12and the right cover 13, such that the left cover 12 and the right cover13 can be disposed on the separator body 11 stably.

In another embodiment of the present disclosure as shown in FIG. 11, aleft end of the upper frame plate 112 extends leftward beyond the leftplate 114 so as to form a left-upper extending part 1121, a left end ofthe lower frame plate 113 extends leftward beyond the left plate 114 soas to form a left-lower extending part 1131, a right end of the upperframe plate 112 extends rightward beyond the right plate 115 so as toform a right-upper extending part 1122, and a right end of the lowerframe plate 113 extends rightward beyond the right plate 115 so as toform a right-lower extending part 1132. Moreover, the snapping slot 116is formed in each of the left-upper extending part 1121, the left-lowerextending part 1131, the right-upper extending part 1122 and theright-lower extending part 1132. Correspondingly, a left-upper clasp 121snapped in the snapping slot 116 of the left-upper extending part 1121and a left-lower clasp snapped in the snapping slot 116 of theleft-lower extending part 1131 are disposed on a right surface of theleft cover 12, and a right-upper clasp 131 snapped in the snapping slot116 of the right-upper extending part 1122 and a right-lower clasp 132snapped in the snapping slot 116 of the right-lower extending part 1132are disposed on a left surface of the right cover 13. Therefore, it ismore convenient to dispose the left cover 12 and the right cover 13 onthe separator 10.

As shown in FIG. 11, the left-upper clasp 121 and the left-lower claspmay be disposed on a right surface of the left cover 12, and theright-upper clasp 131 and the right-lower clasp 132 may be disposed on aleft surface of the right cover 13, such that a structure strength ofeach of the left-upper clasp 121, the left-lower clasp, the right-upperclasp 131 and the right-lower clasp 132 are improved.

Alternatively, the left cover 12 and the right cover 13 have a width ina front-rear direction larger than or equal to a width of the left plate114 and the right plate 115 in the front-rear direction, and less thanor equal to a width of the upper frame plate 112 and the lower frameplate 113 in the front-rear direction. When the left cover 12 and theright cover 13 have the width in the front-rear direction larger thanthe width of the left plate 114 and the right plate 115 in thefront-rear direction, a gap may be formed between the left plates 114 ofthe adjacent separators 10 and between the right plates 115 of theadjacent separators 10, because the left cover 12 or the right cover 13can cover the gap between the left plates 114 or between the rightplates 115. When the left cover 12 and the right cover 13 have the widthin the front-rear direction equal to the width of the left plate 114 andthe right plate 115 in the front-rear direction, the left plates 114 ofthe adjacent separators 10 are closely contacted with each other and theright plates 115 of the adjacent separators 10 are closely contactedwith each other, such that the left plate 114, the righty plate 115, theleft cover 12 or the right cover 13 can protect the battery 101properly.

In order to meet a requirement of safety and reliability of the leftcover 12 and the right cover 13, the left cover 12 and the right cover13 may be made of an engineering plastic and a composite material havinga high strength, a high corrosion resistance, a great weather fastness,a good fire resistance and a high insulation property, such as PPO (PolyPhenylene Oxide), PP (Poly Propylene), PET (Polyethylene GlycolTerephthalate), ABS (Acrylonitrile Butadiene Styrene), PC (PolyCarbonate) or these materials embedded with metal therein. Thereby, theleft cover 12 and the right cover 13 have the high strength, the highcorrosion resistance and the good fire resistance, and can protect thebattery 101 effectively in abnormal conditions, such as a collisionoccurred to the power battery module 1000.

As shown in FIGS. 1-3 and 7-9, in some embodiments of the presentdisclosure, the battery accommodating assembly 100 further includes afront plate 20. The front plate 20 defines a rear groove 21 in a rearside surface thereof. The rear groove 21 of the front plate 20 and thefront accommodating groove 14 of the frontmost separator 10 of theplurality of separators 10 define the frontmost battery chamber. Thefront plate 20 is snapped with the frontmost separator 10, alternativelythe front plate 20 may be snapped with the frontmost separator 10 via asnapping structure 60. The front plate 20 may not define a groove in afront side thereof, such that front plate 20 has a simple structure andis easy to be manufactured, thus saving materials and space.

Correspondingly, the battery accommodating assembly 100 further includesa rear plate 30. The rear plate 30 defines a front groove in a frontside surface thereof. The front groove and the rear accommodating grooveof the rearmost separator of the plurality of separators 10 define therearmost battery chamber. The rear plate 30 is snapped with the rearmostseparator 10, alternatively the rear plate 30 may be snapped with therearmost separator 10 via the above snapping structure 60. The rearplate 30 may not define a groove in a rear side thereof, such that rearplate 30 has a simple structure and is easy to be manufactured, thussaving materials and space. In an embodiment of the present disclosure,the left cover 12 may be disposed at a left side of the front plate 20and the right cover 13 may be disposed at a right side of the frontplate 20, and the left cover 12 may be disposed at a left side of therear plate 30 and the right cover 13 may be disposed at a right side ofthe rear plate 30, such that the front plate 20 and the rear plate 30can be protected better.

In some embodiments of the present disclosure, the snapping hole 1123 isdisposed in at least one of upper and lower walls of the frontaccommodating groove 14 and the rear accommodating groove. In some otherembodiments of the present disclosure, the snapping hole 1123 isdisposed on at least one of a front side surface of the front plate 20and a rear side surface of the rear plate 20. In some embodiments of thepresent disclosure, the battery accommodating assembly 100 furtherincludes a cable snap-fit 200, as shown in FIG. 1, FIG. 2 and FIG. 18.

The cable snap-fit 200 may have a function of fastening cables or wires,that is, the cables or wires from the battery 101 may be limited on thepower accommodating assembly 100 tidily and neatly via the cablesnap-fit 200, then a reliability of the power battery module 1000 may beimproved.

In some embodiments of the present disclosure, as shown in FIGS. 15-19,the cable snap-fit 200 includes a snap-fit body 210 and a snap-fittingportion 220.

The snap-fit body 210 is configured as a substantial arch shape, thatis, in a width direction of the snap-fit body 210, a middle portion ofthe snap-fit body 210 protrudes upwards and two end portions of thesnap-fit body 210 locates below the middle portion of the snap-fit body210. The snap-fit body 210 defines a cabling channel 211 penetrating thesnap-fit body 210 along a length direction of the snap-fit body 210. Anopening portion 214 is formed at a lower end of the cabling channel 211.The cables or wires may be inserted into the cabling channel 211 fromdown to up and accommodated in the cabling channel 211. Then the cablesor wires may be assembled more easily.

The snap-fitting portion 220 is disposed on exterior of the snap-fitbody 210 and having a cable clasp 221 configured to be snapped in thesnapping hole 1123 to fasten the snap-fit body 210 to the separator 10.Then the cable snap-fit 200 is detachably disposed on the separator body10, such that cables or wires may be prevented from moving, and thestructure is stable.

In some embodiments of the present disclosure, the snap-fitting portion220 is disposed on two sides of the opening portion 214 respectively.Then the cable snap-fit 200 may be fastened to the separator 10 morestable. In some other embodiments of the present disclosure, twosnap-fitting portions 220 are disposed on the two sides of the openingportion 214 respectively and symmetric to each other. That is, in thewidth direction of the snap-fit body 210, the two snap-fitting portions220 are symmetric to each other, then the cable snap-fit 200 may befastened to the separator 10 more stable.

With the cable snap-fit 200 according to the embodiments of the presentdisclosure, the cables or wires may be placed in the cabling channel 211of the cable snap-fit 200 effectively and conveniently, the cables orwires may be prevented from moving in the process of use, frictionsbetween the cables or wires and the structures may be reduced, so as toincrease safety performance of the power battery module 1000. Moreover,with the snap-fitting portion 220 including a cable clasp 221 anddisposed on the snap-fit body 210, the cable snap-fit 200 is detachablyconnected with installation body, then the cable snap-fit 200 arereusable, and it is easy to assemble and disassemble the cable snap-fit200, and a maintenance cost and time may also be reduced.

In some embodiments of the present disclosure, the snap-fitting portion220 includes a first end connected with the snap-fit body 210 and asecond end having the cable clasp 221, as shown in FIGS. 15, 16 and 17,an upper end of the snap-fitting portion 220 is connected with thesnap-fit body 210, the cable clasp 221 is disposed at a lower end of thesnap-fitting portion 220. Then the cable snap-fit 200 may have a simplestructure and the cable snap-fit 200 may be manufactured easily.

In some embodiments of the present disclosure, the cabling channel 211includes: a cable accommodating portion 2111 configured to accommodatethe cables; and a transition portion 2112 disposed at a lower end of thecable accommodating portion 2111 and communicated with the cableaccommodating portion 2111. A lateral size of the transition portion2112 is less than that of the cable accommodating portion 2111, and alower end of the transition portion 2112 is open. Specifically, whenassembling the cables or wires, the cables or wires may be received inthe cable accommodating portion 2111 by inserting the cables or wiresinto the cable accommodating portion 2111 from lower end of thetransition portion 2112.

The size of the cable accommodating portion 2111 may match with the sizeof cables or wires to accommodate the cables or wires. In someembodiments of the present disclosure, the size of the transitionportion 2112 may be slightly less than the size of the cables or wires.Thus, when the cables or wires are accommodated in the cableaccommodating portion 2111, the cables or wires may be prevented frombeing dropped off the cable accommodating portion 2111 under arelatively small force, then the cables or wires may be assembled andfixed in the cable accommodating portion 2111 more stable. The width ofthe transition portion 2112 cannot be too large, otherwise, thelamination function of the transition portion 2112 may not be formed,and the width of the transition portion 2112 cannot be too small,otherwise, the cables or wires cannot be inserted into the cableaccommodating portion 2111.

In some embodiments of the present disclosure, a cross-section of thecable accommodating portion 2111 is configured as a circle shape, asshown in FIGS. 15, 16 and 17. Then the shape of the cable accommodatingportion 2111 may match with the shape of the cables or wires, the cablesor wires may be well accommodated in the cable accommodating portion2111. In some embodiments of the present disclosure, a cross-section ofthe transition portion 2112 is configured as a rectangle shape, and awidth of the transition portion 2112 is less than a diameter of thecable accommodating portion 2111. For example, the ratio of the diameterof the cable accommodating portion 2111 to the width of the transitionportion 2112 may be 1.5:1.2, then the cables or wires may be pressedinto the cable accommodating portion 2111 smoothly and easily from thetransition portion 2112. In some embodiments of the present disclosure,the lateral size of the transition portion 2112 is gradually decreasedin a direction from up to down, then the cables or wires may be limitedin the cable accommodating portion 2111 better.

In some embodiments of the present disclosure, the cross-section of thecable accommodating portion 2112 is configured as a square shape, across-section of the transition portion 2111 is configured as arectangle shape. Thus, the cross-section of the transition portion 2111may be suitable for more actual requirements. The cross-section of thetransition portion 2111 may also be configured as an oval shape, apolygon shape, an irregular shape, and so on, according to shape of thecables or wire and assembling requirements.

In some embodiments of the present disclosure, an internal surface of aside wall of the cable accommodating portion 2111 is configured as asmooth surface and a fillet is formed on an edge of the cableaccommodating portion 2111. Thus, insulating layers on surface of thecables or wires may be prevented from being abraded due to a long termof friction between the cables or wires and the cable accommodatingportion 2111, thus to improve a safety performance.

In some embodiments of the present disclosure, as shown in FIG. 17, thecabling channel 211 includes a first cabling channel 2113 and a secondcabling channel 2114, the snap-fitting portion 220 is disposed on anexternal surface of a side wall of the first cabling channel 2113, andthe first cabling channel 2113 and the second cabling channel 2114 areintersected in respective extending directions of the first and secondcabling channels 2113, 2114. Then the cables or wires extend in the twodirections may also be fastened, thus a range of application of thecable snap-fit 200 may be expanded and the cables or wires may extend inmore various directions. In one embodiment of the present disclosure,the first cabling channel 2113 is vertical to the second cabling channel2114, then the cabling channel 211 may be manufactured more easily.

In some embodiments of the present disclosure, the cable snap-fit 200 isfixed on at least one of the upper and lower walls of the frontaccommodating groove 14 and the upper and lower walls of the rearaccommodating groove via the snapping hole 1123. In some otherembodiments of the present disclosure, the cable snap-fit 200 is fixedon at least one of the front side surface of the front plate 20 and therear side surface of the rear plate 30 via the snapping hole 1123. Inone embodiment of the present disclosure, the cable snap-fit 200disposed on the front side surface of the front plate 20 and the rearside surface of the rear plate 30 includes the first cabling channel2113 and the second cabling channel 2114.

In some embodiments of the present disclosure, in the length direction,a size of the snap-fitting portion 220 is less than that of the snap-fitbody 210, and an end face of the snap-fitting portion 220 is configuredto flush with an end face of the snap-fit body 210. Thus, a cost rate ofmaterial may be reduced, and the cable snap-fit may have a simple andreasonable structure, and the snap-fitting portion 220 may be easilyfixed to an installation body.

In some embodiments of the present disclosure, the snap-fitting portion220 is configured as an arch shape that substantially same with a shapeof the snap-fit body 210, a size of the snap-fitting portion 220 islarger than that of the snap-fit body 210 both in a width direction andin an up-down direction. That is, in the width direction, the size ofthe snap-fitting portion 220 is larger than that of the snap-fit body210, and in the up-down direction, the size of the snap-fitting portion220 is larger than that of the snap-fit body 210. In other words, thesnap-fitting portion 220 is disposed on an exterior of the snap-fit body210, the cable clasp 221 extends outwards in the width direction fromthe second end of the snap-fitting portion 220. Thus, the cable clasp221 may outwardly inserted in a cable clasp groove in the installationbody to improve connection strength and stability between the cablesnap-fit 200 and the installation body.

The size of the cable clasp 221 of the snap-fitting portion 220 may bedesigned in consideration of connection strength and stability of thecable snap-fit 200, and conveniences of assembling the cable snap-fit200. For example, if the size of the cable clasp 221 is too small, thedrawing force of the cable clasp 221 is also small, then the connectionstrength between the cable snap-fit 200 and installation body may below, and the connection between the cable snap-fit 200 and installationbody may be unstable (that is, the cable clasp 221 may dropped off dueto vibration); if the size of the cable clasp 221 is too large, it maybe not easy to install the cable clasp 221, in addition, when the cableclasp 221 is repeatedly assembled, the cable clasp 221 may be broken.Therefore, in some embodiments of the present disclosure, an extendedlength of the cable clasp 221 is about 1 millimeter to about 3millimeters to ensure the connection strength and stability of the cablesnap-fit 200, then the cable snap-fit 200 may be easily assembled anddisassembled easily, and the cable snap-fit 200 has a good strength andcannot be broken after repeatedly assembling.

As shown in FIG. 15 and FIG. 16, in some embodiments of the presentdisclosure, the cabling channel 211 includes a first end and a secondend in the length direction. The snap-fitting portion 220 is disposedadjacent to the first end of the cabling channel 211, and a limitingflange 212 is disposed at the second end of the cabling channel 211.That is, the snap-fitting portion 220 and the limiting flange 212 aredisposed on two end of the snap-fit body 210 in the length direction.With the limiting flange 212, a degree of freedom of the cable snap-fit200 in the length may be limited to further improve an installationstability of the cable snap-fit 200.

In some embodiments of the present disclosure, a plurality ofstrengthening ribs 213 are disposed on outer surface of the snap-fitbody 210 and outer surface of the snap-fitting portion 220. Thus,strength of the snap-fit body 210 and the snap-fitting portion 220 maybe increased and a service life of the snap-fit body 210 and thesnap-fitting portion 220 may be lengthened. In some embodiments of thepresent disclosure, the number of the strengthening rib 213 is 2-6.

In some embodiments of the present disclosure, the snap-fit body 210 andthe snap-fitting portion 220 are formed integrally to increaseconnection strength between the snap-fit body 210 and the snap-fittingportion 220, therefore, the cable snap-fit 200 may have a stablestructure and a long service life. Specifically, the snap-fit body 210and the snap-fitting portion 220 may be formed by injection molding,after the snap-fit body 210 and the snap-fitting portion 220 are molded,the snap-fit body 210 and the snap-fitting portion 220 may be demoldeddirectly, therefore, it is easily to manufacture the snap-fit body 210and the snap-fitting portion 220, and the cost is lower.

In order to improve intensity, corrosion resistance and weatherresistance of the cable snap-fit 200, the cable snap-fit 200 may be madeof materials having a high strength, a high corrosion resistance, agreat weather fastness, such as PPO (Poly Phenylene Oxide), ABS(Acrylonitrile Butadiene Styrene), PC (Poly Carbonate) or thesematerials embedded with metal therein.

Embodiments of the present disclosure also provide a power batterymodule 1000, which includes the battery accommodating assembly 100mentioned above. With the battery accommodating assembly 100 accordingthe embodiments of the present disclosure, the battery 101 may be fixedin the battery chamber of the battery accommodating assembly 100 firmlyand safely. Thus the power battery module 1000 may have a simplestructure, a long service life and a high safety performance. Inaddition, the power battery module 1000 may be manufactured easily, andcould be freely expanded according to actual needs.

Reference throughout this specification to “an embodiment,” “someembodiments,” “one embodiment”, “another example,” “an example,” “aspecific example,” or “some examples,” means that a particular feature,structure, material, or characteristic described in connection with theembodiment or example is included in at least one embodiment or exampleof the present disclosure. Thus, the appearances of the phrases such as“in some embodiments,” “in one embodiment”, “in an embodiment”, “inanother example,” “in an example,” “in a specific example,” or “in someexamples,” in various places throughout this specification are notnecessarily referring to the same embodiment or example of the presentdisclosure. Furthermore, the particular features, structures, materials,or characteristics may be combined in any suitable manner in one or moreembodiments or examples.

Although explanatory embodiments have been shown and described, it wouldbe appreciated by those skilled in the art that the above embodimentscannot be construed to limit the present disclosure, and changes,alternatives, and modifications can be made in the embodiments withoutdeparting from spirit, principles and scope of the present disclosure.

1. A battery accommodating assembly, comprising a plurality ofseparators, wherein adjacent separators are detachably connected witheach other via a snapping structure and define a battery chamber.
 2. Thebattery accommodating assembly according to claim 1, wherein thesnapping structure comprises: a snapping groove formed in one of theadjacent separators; and a snapping tongue disposed on the other of theadjacent separators and adapted to snap in the snapping groove to fastenthe adjacent separators together.
 3. The battery accommodating assemblyaccording to claim 2, wherein a through-hole is formed in at least oneof a left wall and a right wall of the battery chamber.
 4. The batteryaccommodating assembly according to claim 3, wherein the separatorcomprises a separator body having a front portion and a rear portion,the front portion defines a front accommodating groove; a front notch isformed in at least one of a left wall and a right wall of the frontaccommodating groove, the battery chamber is defined by the frontaccommodating groove of one of adjacent separators and the rear portionof the other of the adjacent separators; and the through-hole is definedby the front notch of one of adjacent separators and the other of theadjacent separators.
 5. The battery accommodating assembly according toclaim 4, wherein the rear portion of the separator defines a rearaccommodating groove, a rear notch corresponding to the front notch isformed in at least one of a left wall and a right wall of the rearaccommodating groove, the battery chamber is defined by the frontaccommodating groove of one of adjacent separators and the rearaccommodating groove of the other of the adjacent separators, and thethrough-hole is defined by the front notch of one of adjacent separatorsand the rear notch of the other of the adjacent separators.
 6. Thebattery accommodating assembly according to claim 5, wherein theseparator body comprises: a vertical plate; an upper frame platedisposed at a top edge of the vertical plate; a lower frame platedisposed at a bottom edge of the vertical plate; a left plate disposedat a left end of the vertical plate and including an upper end connectedwith the upper frame plate and a lower end connected with the lowerframe plate; and a right plate disposed at a right end of the verticalplate and including an upper end connected with the upper frame plateand a lower end connected with the lower frame plate, wherein each ofthe front and rear accommodating grooves is defined by the verticalplate, the upper frame plate, the lower frame plate, the left plate andthe right plate.
 7. The battery accommodating assembly according toclaim 6, wherein the snapping groove is formed in one of front and rearedges of the upper frame plate, and the snapping tongue is disposed onthe other one of the front and rear edges of the upper frame plate. 8.The battery accommodating assembly according to claim 6, wherein thesnapping groove is formed in one of front and rear edges of the lowerframe plate, and the snapping tongue is disposed on the other one of thefront and rear edges of the lower frame plate.
 9. The batteryaccommodating assembly according to claim 2, wherein the snapping tonguehas a trapezoid shape.
 10. The battery accommodating assembly accordingto claim 2, wherein a guiding slope is formed at an opening of thesnapping groove.
 11. The battery accommodating assembly according toclaim 6, wherein a window is formed in the vertical plate to communicatethe front accommodating groove with the rear accommodating groove. 12.The battery accommodating assembly according to claim 11, wherein aninsulating plate or a heat conducting plate is disposed in the window.13. The battery accommodating assembly according to claim 11, wherein aninsertion hole is formed in the upper frame plate, an inserting groovealigned with the inserting hole is formed in the vertical plate, and theinsulating plate or a heat conducting plate is inserted into the windowvia the insertion hole and the inserting groove.
 14. The batteryaccommodating assembly according to claim 6, wherein the front notch isformed in a front edge of each of the left and right plates, and therear notch is formed in a rear edge of each of the left and rightplates.
 15. The battery accommodating assembly according to claim 2,wherein the snapping structure comprises: a snap-fit groove formed inthe separator; and a snap-fit pin having at least two mounting partsrespectively fitted in the snap-fit grooves of at least two separatorsto connect the at least two separators.
 16. The battery accommodatingassembly according to claim 15, wherein the snap-fit pin furthercomprises a connection bridge, and two mounting parts are disposed attwo ends of the connection bridge respectively and fitted in thesnap-fit grooves of adjacent separators to connect the adjacentseparators with each other.
 17. The battery accommodating assemblyaccording to claim 16, wherein the snap-fit groove has an opening, andthe openings of the snap-fit grooves in the adjacent separators arealigned to each other to receive the connection bridge.
 18. The batteryaccommodating assembly according to claim 6, wherein the separator isformed integrally.
 19. The battery accommodating assembly according toclaim 5, wherein an annular step is disposed on a bottom wall of atleast one of the front and rear accommodating grooves. 20-48. (canceled)49. A power battery module, comprising: a battery accommodating assemblycomprising a plurality of separators, wherein adjacent separators aredetachably connected with each other via a snapping structure and definea battery chamber, and a battery accommodated in a battery chamber ofthe battery accommodating assembly.